ChartScale

• Source: https://github.com/seandepagnier/chartscale_pi[1564]
  
• Downloads: https://opencpn.org/OpenCPN/plugins/chartscale.html[1565]
  
• Forum: http://www.cruisersforum.com/forums/f134/chartscale-plugin-201340.html[1566]
  

This document is about ChartScale-plugin (Chartscale-pi)

• What and Why [1567]
• * A. What can chartscale-pi do [1568]
• * B. Why can chartscale-pi be useful [1569]
• Installation [1570]
• * A. Where to get this plugin [1571]
• * B. How to install this plugin [1572]
• Standard Actions [1573]

The plugin allows the user to zoom in and out by means of a slider.
opencpn:manual:plugins:chartscale:chartscal_last.png

Normally you use the (+) and (-) buttons or the scroll-wheel of your mouse for zooning in and out. But maybe you prefer tou use a slider. The position of the slider (far left, far right or somewhere in between) gives you a direct indication of the zoom-status.

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The github repository is:

https://github.com/seandepagnier/chartscale_pi[1575]

ChartScale-pi for Windows can be downloaded from this location:
[https://github.com/rgleason/chartscale_pi/releases[1576]|Chartscale Executable]]
Click on the most recent to download.

Double-click the downloaded file (with “chartscale_pi” in the name and “.exe” as extension) and follow the set-up instructions.
That's it.

Open (or restart) OpenCPN.
Click Tools-Options-Plugins
Scroll down untill you see the ChartScale-pi.
opencpn:manual:plugins:chartscale:chartscale_enable.png

Click “Enable” to enable the plugin and then “Preferences” to set your preferences (should be self-explanatory).

opencpn:manual:plugins:chartscale:chartscale_preferences.png

Click “OK” in the Chart Scale Preferences window and then “OK” in the Plugins-window.

Now the Chart Scale slider should appear on your screen.

In this example the slider-button is to the far left. That means “zoom in as far as possible”.

opencpn:manual:plugins:chartscale:chartscale_all_in.png

And in this example the slider-button is to the far right. That means “zoom out as far as possible”.
opencpn:manual:plugins:chartscale:chartscale_all_out.png

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What are basic (standard) actions you have to do to make ChartScale-pi work.

Well, that is quite simple. Click on the slider-bar. Click left of the slider-button to zoom in…
opencpn:manual:plugins:chartscale:chartscale_left_of.png

And click right of the slider-button to zoom out.
opencpn:manual:plugins:chartscale:chartscale_right_of.png

Click “Last” to zoom back to the zoom-factor that was last used.
opencpn:manual:plugins:chartscale:chartscal_last.png

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